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Submitted on: 09 November 2006.
Revised on: 22 December 2006.
Accepted on: 11 January 2007.
SOLID STATE COMMUNICATIONS---PERGAMON-ELSEVIER SCIENCE LTD
Submitted on: 10 March 1999.
Revised on: 06 April 1999.
Accepted on: 23 April 1999.
SOLID STATE COMMUNICATIONS
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